Metrology

Preliminary testing of the quantum gravity gradiometer designed by Michael Holynski and colleagues at the University of Birmingham, which has now been shown to locate an underground tunnel with a positional accuracy of 20cm. Credit: Crown Copyright

Underground quantum sensing set to erupt

Susan Curtis explores the new breed of quantum gravimeters finding their way onto the slopes of Mount Etna and into tunnels deep under Birmingham

Radiometry & photometry: The dark art of light metrology

This article is brought to you by: 

The science of measuring the amount, spectral and spatial distribution of light emitted by a source is generally poorly understood. Few university-level physics or engineering syllabuses review the principles of optical radiation measurement, let alone the practicalities. This is despite our interacting with light almost constantly, both in nature and in our work and leisure activities. This white paper reviews the fundamental principles of light metrology.

Spectral, spatial and temporal optimization of solid-state light engine output

This article is brought to you by: 

Specifications for illumination systems for biomedical imaging and industrial metrology generally converge on spectral, spatial and temporal light output characteristics. This article describes some of the ways in which solid-state light engines consisting of arrays of solid-state light sources, a mix of LEDs, light pipes and lasers, allow for the customisation of specifications to meet application-specific lighting requirements.

L to R: Marc Canales, Roger Artigas, EPIC’s Ana González & Carlos Lee

Made to measure

Jose Pozo, CTO at EPIC, talks with Roger Artigas, co-founder, president and CTO of Sensofar Metrology – a designer and manufacturer of 3D surface metrology instruments

Measure for measure

Keely Portway looks at some of the latest advances in light-based test and measurement techniques

Subscribe to RSS - Metrology